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Understand database tables used in business. Database Fundamentals.

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Presentation on theme: "Understand database tables used in business. Database Fundamentals."— Presentation transcript:

1 Understand database tables used in business. Database Fundamentals

2 5.01 Understand database tables used in businessSlide 2 ►A►A►A►A database is a tool for organizing, storing, retrieving, and communicating groups of information that have similar characteristics What is a database?

3 5.01 Understand database tables used in businessSlide 3 Examples of Business Databases ► Telephone book ► Student data ► Music ► Fingerprint database ► Dictionaries ► Customer data ► Real estate listings  MLS listings online ► Hospital/patient data ► Inventory  Barcode scanner keeps inventory in database

4 5.01 Understand database tables used in businessSlide 4 What makes a database? Databases consist of four objects: 1. Tables 1. Tables store data in rows and columns* 2. Queries 2. Queries retrieve and process data 3. Forms 3. Forms control data entry and data views Customized manner of inputting data into a database or presenting data on a screen 4. Reports 4. Reports summarize and print data *In this objective, our focus is on tables

5 5.01 Understand database tables used in businessSlide 5 Tables: the Building Blocks of all Databases Tables organize data Each database consists of one or more tables ► Tables store data, so they’re essential building blocks of any database. ► All databases contain at least one table ► A database should have a separate table for every major subject, such as for employee records or customer orders. Data should not be duplicated in multiple tables. ► Tables contain Rows called Records and Columns called Fields.

6 5.01 Understand database tables used in businessSlide 6 Components of a Database Table ► Record – A group of related fields of information. Everything on one row is a record ► Field – One item or bit of information in a record; represented by a COLUMN. Comprised of entries ► Entry – Data typed into a field. Made up of characters. Example: John Doe is an entry in the name field. Also known as data.

7 5.01 Understand database tables used in businessSlide 7 Database Tables: The Big Picture To calculate the number of entries in a database multiply the number of fields by the number of records. Ex. 5*26= 130 entries in this database. 3. Cells - ENTRIES 1. Rows – RECORDS 2. Columns - FIELDS 1.Records 3.Entry 2.Fields

8 Discussion ► Name ► Birth date ► Social Security No. ► Street ► City ► State ► Zip ► Phone Each item on the left is classified as a/an: a) Table b) Record c) Field d) Entry 5.01 Understand database tables used in businessSlide 8

9 Discussion ► Susan Almond ► 10/22/1985 ► ► 31 Bessemer St. ► Greensboro ► NC ► ► Each item on the left is classified as a/an: a) Table b) Record c) Field d) Entry 5.01 Understand database tables used in businessSlide 9

10 Discussion ► Susan Almond ► 10/22/1985 ► ► 31 Bessemer St. ► Greensboro ► NC ► ► All of the information about Susan Almond is classified as a/an: a) Table b) Record c) Field d) Entry 5.01 Understand database tables used in businessSlide 10

11 Discussion ► Information about multiple employees is classified as a/an: a) Table b) Record c) Field d) Entry 5.01 Understand database tables used in businessSlide 11

12 Susan’s Record 5.01 Understand database tables used in businessSlide 12 NameBdaySSStreetCityStZipPhone Almond, Susan 10/22/ Bessemer St GreensboroNC One record is displayed from the Employee Table above. The table contains 8 fields.

13 Test your knowledge ► Using the last page of the Database Fundamentals graphic organizer, classify each database component Understand database tables used in businessSlide 13


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